zygum

zygum
n.; pl. zyga [Gr. zygon, yoke]
1. (ARTHROPODA: Crustacea)
In Ostracoda, a chitinous process of the male copulatory apparatus suspended in the posterior shell region by a system of chitinous rods, about which the peniferum arcs.
2. (ARTHROPODA: Insecta)
In Scarabaeoidea larva, a convex cross bar forming the anterior margin of the haptomerum.

Online Dictionary of Invertebrate Zoology. . 2005.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • dorsal cardo — (ARTHROPODA: Crustacea) In Ostracoda, that portion of the peniferum that serves as a hinge by which it articulates with the zygum …   Dictionary of invertebrate zoology

  • epizygum — n.; pl. epizyga [Gr. epi, upon; zygon, yolk] (ARTHROPODA: Insecta) In certain beetle larvae, an elongate plate or bar extending from the zygum toward the clithrum on the right of the epipharynx, or embodied in the tylus; may be present when… …   Dictionary of invertebrate zoology

  • peniferum — n. [L. penis, male copulatory organ; ferum, bear] (ARTHROPODA: Crustacea) In Ostracoda, the varied, sclerotized male copulatory apparatus that bears the penis and hinge on which the apparatus may turn around the zygum …   Dictionary of invertebrate zoology

  • tropis — n. [Gr. tropus, keel] 1. (ARTHROPODA: Crustacea) In Ostracods, a heavy chitinous (or two unfused rods) connecting the zygum to the sternix and pastinum. 2. (NEMATODA: Adenophorea) In Enoplida, a hollow tooth like structure formed by a subventral… …   Dictionary of invertebrate zoology

  • ventral cardo — (ARTHROPODA: Crustacea) In Ostracoda, that portion of the peniferum that serves as a hinge by which it articulates with the zygum …   Dictionary of invertebrate zoology

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”